Name: ______________________ Class: _________________ Date: _________

1

AP Statistics Summer Review

____ 1. The number of eagles observed along a certain river per day over a two week period is listed below. What is a frequency table that represents the data?

1 3 2 5 10 8 9 15 0 7 12 13 6 18

a.

Eagles Frequency

0 − 4 2

5 − 9 3

10 − 14 4

15 − 19 5

c.

Eagles Frequency

0 − 4 4

5 − 9 5

10 − 14 2

15 − 19 3

b.

Eagles Frequency

0 − 4 4

5 − 9 5

10 − 14 3

15 − 19 2

d.

Eagles Frequency

0 − 4 5

5 − 9 4

10 − 14 2

15 − 19 3

Name: ______________________

2

____ 2. The number of hours a group of contestants spent preparing for a quiz show are listed below. What is a frequency table that represents the data?

60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61

a.

Hours Frequency

0 − 9 0

10 − 19 1

20 − 29 1

30 − 39 3

40 − 49 2

50 − 59 1

60 − 69 4

70 − 79 1

80 − 89 2

90 − 99 2

c.

Hours Frequency

0 − 9 0

10 − 19 1

20 − 29 2

30 − 39 1

40 − 49 2

50 − 59 1

60 − 69 4

70 − 79 1

80 − 89 1

90 − 99 1

b.

Hours Frequency

0 − 9 4

10 − 19 1

20 − 29 1

30 − 39 2

40 − 49 3

50 − 59 4

60 − 69 1

70 − 79 1

80 − 89 1

90 − 99 1

d.

Hours Frequency

0 − 9 1

10 − 19 2

20 − 29 1

30 − 39 2

40 − 49 2

50 − 59 3

60 − 69 3

70 − 79 1

80 − 89 0

90 − 99 2

Name: ______________________

3

____ 3. The data below shows the average number of text messages a group of students send per day. What is a histogram that represents the data?20 5 8 22 10 1 7 15 16 12 15 6 13 8

a. c.

b. d.

Name: ______________________

4

____ 4. The data below show the number of games won by a football team in each of the last 15 seasons. What is a histogram that represents the data?3 4 8 12 7 2 1 15 16 6 10 13 4 1 5

a. c.

b. d.

Name: ______________________

5

Is the histogram uniform, symmetric, or skewed?

____ 5.

a. symmetricb. skewedc. uniform

____ 6.

a. symmetricb. uniformc. skewed

Name: ______________________

6

____ 7.

a. skewedb. uniformc. symmetric

Name: ______________________

7

____ 8. The data below shows the number of kilowatt hours of electricity used by the tenants of a small apartment building in a given month. What is a cumulative frequency table that represents the data?

80 85 86 90 96 75 66 70 99 65 70 99 70 73 64 92 72 81 88 91 93 69 77 82

a.

Kilowatt

Hours

Frequency Cumulative

Frequency

60 − 69 7 7

70 − 79 4 11

80 − 89 7 18

90 − 99 6 24

b.

Kilowatt

Hours

Frequency Cumulative

Frequency

60 − 69 4 4

70 − 79 7 11

80 − 89 6 17

90 − 99 7 24

c.

Kilowatt

Hours

Frequency Cumulative

Frequency

60 − 69 7 24

70 − 79 4 24

80 − 89 5 24

90 − 99 6 24

d.

Kilowatt

Hours

Frequency Cumulative

Frequency

60 − 69 4 4

70 − 79 6 10

80 − 89 7 17

90 − 99 7 24

Name: ______________________

8

____ 9. The data below shows the number of hours a week on average a group of students spend volunteering for community service projects. What is a cumulative frequency table that represents the data?

4 5 10 21 6 2 9 8 12 15 8 14 6 4 6 11 3 2 9 16 22 23

Name: ______________________

9

a.

Hours Frequency Cumulative

Frequency

0 − 4 5 5

5 − 9 8 13

10 − 14 4 17

15 − 19 2 19

20 − 24 3 22

b.

Hours Frequency Cumulative

Frequency

0 − 4 5 5

5 − 9 6 11

10 − 14 4 15

15 − 19 4 19

20 − 24 3 22

c.

Hours Frequency Cumulative

Frequency

0 − 4 4 4

5 − 9 7 11

10 − 14 8 19

15 − 19 1 20

20 − 24 2 22

d.

Hours Frequency Cumulative

Frequency

0 − 4 2 2

5 − 9 3 5

10 − 14 4 9

15 − 19 5 14

20 − 24 8 22

Name: ______________________

10

Find the mean, median, and mode of the data set. Round to the nearest tenth.

____ 10. 15, 1, 4, 4, 8, 7, 15, 4, 15, 4, 5a. mean = 6.8,

median = 5, mode = 4

b. mean = 7.5, median = 5, mode = 4

c. mean = 7.5, median = 8, mode =4

d. mean = 6.8, median = 5, mode = 8

____ 11. test scores on a math exam:83, 96, 67, 67, 86, 65, 82, 85, 97, 73, 85, 67, 99, 98, 65, 96, 70, 92, 74, 83, 72, 76a. mean = 74.1,

median = 82.5, mode = 82

b. mean = 74.1, median = 82.5, mode = 67

c. mean = 80.8, median = 82.5, mode = 67

d. mean = 80.8, median = 82, mode = 67

____ 12. Suppose that to make the golf team you need to score no more than 74 on average over 5 games. If you scored 77, 71, 77, and 67 in your first 4 games what is the highest score you can shoot in your 5th game and still make the team?a. 76 c. 79b. 78 d. 80

____ 13. Find x if the average of 20, 20, 19, 13, and x is 16.a. 8 c. 10b. 9 d. 6

____ 14. The line plot shows the number of hours that a group of students spent studying for the SAT during their first week of preparation. What are the mean, median, mode, and range of their times spent studying?

a. mean = 15median = 15mode = 15range = 7

c. mean = 15median = 15mode = 15range = 6

b. mean = 12median = 15mode = 12range = 6

d. mean = 12median = 15mode = 12range = 7

Name: ______________________

11

____ 15. The table shows the number of hours that a group of friends spent in their first week training to run a marathon. What are the mean, median, mode, and range of times? Round to the nearest tenth.

a. mean = 5.4median = 6mode = 7range = 6

c. mean = 7median = 6.5mode = 7range = 6

b. mean = 7median = 6mode = 7range =7

d. mean = 6.5median = 5.4mode = 6range = 7

____ 16. The back-to-back stem-and-leaf plot below shows exam scores from two different math classes. What is the mode and mean for class A and the range and median for class B?

Class A Class B1 2 5 6 7 8 4 1 2

2 3 4 9 5 91 1 4 8 6 2 4 9

1 7 1 5 7 8 8 2 5 8 0 3 4 4 6 6 7

0 9 2 2 5

Key: 0|9|2 means 90 for Class A and 92 for Class B

a. mode class A = 1mean class A = 59.4range class B = 50median class B = 77

c. mode class A = 59mean class A = 56.5range class B = 54median class B = 90

b. mode class A = 61mean class A = 59.4range class B = 54median class B = 78

d. mode class A = 1mean class A = 56.5range class B = 52median class B = 80

Name: ______________________

12

____ 17. The line plots below show exam scores from two different driver’s education classes. Which class has a greater mean score? Which class has a greater median score?

a. greater mean = PM classgreater median = PM class

c. greater mean = AM classgreater median = PM class

b. greater mean = PM classgreater median = AM class

d. greater mean = AM classgreater median = AM class

____ 18. The back-to-back stem-and-leaf plot below show exam scores from two different math classes. Which class has a greater mean score? Which class has a greater median score?

Class A Class B1 5 4 2

1 6 8 5 45 7 7 9 6 1 6

6 6 7 8 9 7 2 5 6 61 2 8 0 0 4 8 9

1 9 3 5 6 7

Key: 1|9|3 means 91 for Class A and 93 for Class B

a. greater mean = class Agreater median = class A

c. greater mean = class Bgreater median = class A

b. greater mean = class Bgreater median = class B

d. greater mean = class Agreater median = class B

What are the minimum, first quartile, median, third quartile, and maximum of the data set?

____ 19. 9, 20, 4, 18, 4, 18, 20, 9a. minimum 4; first quartile 10; median 16.25; third quartile 19.5; maximum 20b. minimum 4; first quartile 6.5; median 13.5; third quartile 19.5; maximum 20c. minimum 4; first quartile 6.5; median 13.5; third quartile 19; maximum 20d. minimum 4; first quartile 5.25; median 16.25; third quartile 19; maximum 20

Name: ______________________

13

____ 20. 120, 150, 60, 70, 80, 50, 180, 70a. minimum 50; first quartile 57.5; median 105; third quartile 135; maximum 180b. minimum 50; first quartile 65; median 75; third quartile 157.5; maximum 180c. minimum 50; first quartile 70; median 105; third quartile 157.5; maximum 180d. minimum 50; first quartile 65; median 75; third quartile 135; maximum 180

Make a box-and-whisker plot of the data.

____ 21. 21, 27, 22, 22, 25, 14, 16, 10

a.

b.

c.

d.

____ 22. Average daily temperatures in Tucson, Arizona, in December:64, 61, 59, 58, 56, 61, 57, 56, 58, 56, 62, 65, 51, 59, 61, 51, 59, 53, 52, 54

a.

b.

c.

d.

Name: ______________________

14

____ 23. The two box-and-whisker plots below show the times in seconds for two teams in a 100 m dash. What do the interquartile ranges tell you about the two teams?

a. Team A has more consistent timesb. Team B has more consistent timesc. Overall team A is faster than team Bd. Overall team B is faster than team A

____ 24. The two box-and-whisker plots below show the scores on a math exam for two classes. What do the interquartile ranges tell you about the two classes?

a. Class A has more consistent scoresb. Class B has more consistent scoresc. Overall class A performed better than class Bd. Overall class B performed better than class A

Is each data set qualitative or quantitative?

____ 25. favorite sports teamsa. qualitative b. quantitative

____ 26. the numbers of hours spent commuting to work by the employees of a companya. qualitative b. quantitative

____ 27. A yogurt shop offers 6 different flavors of frozen yogurt and 9 different toppings. How many choices are possible for a single serving of frozen yogurt with one topping?a. 36 b. 54 c. 81 d. 60,480

____ 28. Prestige Builders has a development of new homes. There are four different floor plans, seven exterior colors, and an option of either a two-car or a three-car garage. How many choices are there for one home?a. 34 b. 96 c. 64 d. 56

____ 29. In how many ways can 11 basketball players be listed in a program?a. 39,916,800 c. 1b. 55,440 d. 11

Name: ______________________

15

____ 30. How many different arrangements can be made with the letters in the word POWER?a. 120 b. 20 c. 25 d. 100

____ 31. While attending a film festival you decide that there are 13 movies that you are interested in seeing. However, you only have time to see 7 movies. In how many different ways can you watch 7 of the 13 movies?a. 8,648,640 c. 665,280b. 13 d. 4,324,320

____ 32. A mathematics journal has accepted 14 articles for publication. However, due to budgetary restraints only 9 articles can be published this month. How many ways can the journal editor assemble 9 of the 14 articles for publication?a. 726,485,760 c. 2,002b. 14 d. 126

____ 33. A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different types of pizzas can you order with 3 toppings?a. 1 c. 455b. 2,730 d. 217,945,728,000

____ 34. 9 students volunteer for a committee. How many different 6-person committees can be chosen?a. 1 b. 362,880 c. 60,480 d. 84

____ 35. You roll a standard number cube. Find P(number greater than 5)

a. 25

b. 56

c. 13

d. 16

____ 36. You have the numbers 1–25 written on slips of paper. If you choose one slip at random, what is the probability that you will select a number which is divisible by 4?

a. 15

b. 625

c. 425

d. 23

____ 37. A drug trial is testing the effectiveness of two drugs. If 50 patients are given Drug A, 20 patients are given Drug B, and 100 patients are given a placebo, what is the probability that a patient will NOT be given a placebo?

a. 517

b. 1017

c. 217

d. 717

____ 38. You have the numbers 1–24 written on slips of paper. If you choose one slip at random, what is the probability that you will NOT select a number which is divisible by 3?

a. 38

b. 13

c. 58

d. 23

Name: ______________________

16

____ 39. What are the odds of the spinner landing on a dark section?

a. 2 : 1 b. 2 : 4 c. 3 : 2 d. 1 : 5

____ 40. What are the odds of rolling a sum of 10 using two number cubes?

a. 1 : 11 b. 1 : 12 c. 11 : 1 d. 12 : 1

____ 41. In a batch of 860 calculators, 9 were found to be defective. What is the probability that a calculator chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.a. 1.4% b. 1% c. 74.2% d. 99%

____ 42. In a batch of 280 water purifiers, 12 were found to be defective. What is the probability that a water purifier chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.a. 4.3% b. 5.6% c. 95.7% d. 71.8%

____ 43. A cell phone company orders 400 new phones from a manufacturer. If the probability of a phone being defective is 2.1%, predict how many of the phones are likely to be defective. Round your answer to the nearest whole number.a. 84 phones b. 11 phones c. 8 phones d. 7 phones

____ 44. A construction company orders 2900 new light bulbs for a new office building. If the probability of a light bulb being defective is 1.9%, predict how many of the light bulbs are likely to be defective. Round your answer to the nearest whole number.a. 55 light bulbs c. 46 light bulbsb. 69 light bulbs d. 551 light bulbs

____ 45. Teesha is in the French club. There are 31 students in the club. The French teacher will pick two students at random to guide visiting students from France. What is the probability that Teesha will be picked as a guide? Hint: Teesha must be picked first or second.

a. 130

b. 3031

c. 1930

d. 231

____ 46. What is the probability of rolling a sum of 8 or 6 on a pair of number cubes?

a. 351296

c. 16

b. 518

d. 29

Name: ______________________

17

____ 47. What is the probability of rolling a sum of 5 on at least one of two rolls of a pair of number cubes?

a. 181

c. 29

b. 251296

d. 1781

____ 48. Suppose you flip a coin and roll a number cube. What is the probability of having tails come up on the coin and an even number on the number cube?

a. 34

c. 12

b. 1 d. 14

____ 49. Suppose you choose a marble from a bag containing 4 red marbles, 2 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).

a. 43

b. 23

c. 79

d. 427

____ 50. In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 24 vowels and 15 consonants, what is the probability you will choose a consonant and then a vowel?

a. 6013

b. 139

c. 40169

d. 12013

____ 51. You have three $1 bills, four $5 bills, and two $10 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill at random. Find P($10 then $1).

a. 112

b. 581

c. 572

d. 227

____ 52. A basket contains 15 pieces of fruit: 7 apples, 5 oranges, and 3 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?

a. 67

b. 745

c. 16

d. 45

____ 53. Thomas, Jenna, and Maria are playing a game. They have a bag that contains 44 white tiles and 2 red tiles. Each player takes turns picking a tile at random and does not return the tiles to the bag. The player who draws a red tile first is the winner. In the first round, Thomas goes first, then Jenna, and then Maria, and none of them draws a red tile. What is the probability that Thomas will win the game on his second turn?

a. 245

b. 123

c. 243

d. 121

____ 54. Your English teacher has decided to randomly assign poems for the class to read. The syllabus includes 2 poems by Shakespeare, 5 poems by Coleridge, 4 poems by Tennyson, and 3 poems by Lord Byron. What is the probability that you will be assigned a poem by Coleridge and then a poem by Lord Byron?

a. 12

c. 15182

b. 914

d. 514

Name: ______________________

18

____ 55. The names of 9 boys and 2 girls are in a hat. What is the probability of first drawing a girl’s name and then a boy’s name from the hat?

a. 118

c. 19

b. 111

d. 955

What is the solution of the equation?

____ 56. –9 = 517

n

a. − 1535

c. − 1745

b. − 5153

d. − 4517

____ 57. Manny and Emma are both competing in a long jump competition at their school. Manny can jump four fifths of the distance that Emma can jump. Manny can jump 40 inches. How far can Emma jump?a. 40.8 inches c. 32 inchesb. 50 inches d. 39.2 inches

____ 58. Steven wants to buy a $565 bicycle. Steven has no money saved, but will be able to deposit $30 into a savings account when he receives his paycheck each Friday. However, before Steven can buy the bike, he must give his sister $65 that he owes her. For how many weeks will Steven need to deposit money into his savings account before he can pay back his sister and buy the bike?a. 25 weeks b. 19 weeks c. 22 weeks d. 21 weeks

____ 59. Aimi is making Valentine’s Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 6 closest friends. She will use 1

8 of a sheet of paper for everyone else in the class. She has 34 sheets of paper. How many of the smaller cards can she make?

a. 3 cards b. 4 cards c. 272 cards d. 224 cards

What is the solution of the equation?

____ 60. 16 = −5 + z4

a. 69 b. –1 c. 9 d. 59

____ 61. b + 65

= 10

a. 44 b. –4 c. 56 d. 8

____ 62. John and 2 friends are going out for pizza for lunch. They split one pizza and 3 large drinks. The pizza cost $12.00. They spend a total of $16.95. Find the cost of one large drink.a. $14.48 b. $1.65 c. $1.70 d. $2.48

Name: ______________________

19

What is the solution of the equation?

____ 63. 3(y – 5) + 2 = 5a. 4 b. 7 c. –4 d. 6

____ 64. 70 = –7(–2 – 2z)

a. 4 b. –28 c. –112 d. 784

____ 65. 3p5+ 8

5= 1

a. 15 b. 2 c. –10 d. –1

____ 66. 4p6

+ 27 = 39

a. 22 b. 99 c. 4 d. 18

What is the solution of the equation?

____ 67. 6x – 3 = 5x – 5a. –4 b. –2 c. 0 d. –1

____ 68. A camera manufacturer spends $2250 each day for overhead expenses plus $6 per camera for labor and materials. The cameras sell for $16 each. How many cameras must the company sell in one day to equal its daily costs? If the manufacturer can increase production by 50 cameras per day, what would their daily profit be?a. The company must sell 141 cameras to equal its daily costs; $340b. The company must sell 225 cameras to equal its daily costs; $800c. The company must sell 165 cameras to equal its daily costs; $100d. The company must sell 225 cameras to equal its daily costs; $500

What is the solution of the equation?

____ 69. 3p − 1 = 5(p − 1) − 2(7 − 2p)a. 3 b. 0 c. –9 d. –10

____ 70. 5 10x − 10( ) = −5 −4x + 4( )a. 1 b. –1 c. 0 d. 2

____ 71. −6p + 7 = 3(2p − 3) − 4(−10 + 4p)a. p = 6 b. p = 5 c. p = 7 d. p = 12

____ 72. Which equation has no solution?a. 8 − (5v + 3) = 5v − 5 c. 3w+ 4 − w = 5w − 2(w− 2)

b. 3m − 6 = 5m + 7 − m d. 7y + 9 = 7y − 6

Name: ______________________

20

What is the solution of each equation?

____ 73. 2(h − 8) − h = h − 16a. 8 c. infinitely many solutionsb. −8 d. no solution

____ 74. What equation do you get when you solve z−m = z+ bx for x?

a. x = − 2z+mb

c. x = −mb

b. x = − bm

d. x = 2z−mb

What is the solution of the proportion?

____ 75. 108

= 25x

a. 200 b. 20 c. 31.3 d. 3.2

____ 76. 13y

= 38

a. 1.8 b. 4.9 c. 34.7 d. 104

What is the solution of the proportion?

____ 77. x − 85

= 24

a. 92

b. 52

c. 212

d. 18

____ 78. w + 144w + 6

= 34

a. 819

b. 1528

c. 194

d. 27

____ 79. What percent of 88 is 72.6?a. 8.25% c. 165%b. 82.5% d. 825%

____ 80. A dress that normally costs $69.50 is on sale for 45% off. What is the sale price of the dress?a. $38.23 c. $24.50b. $31.28 d. $1.54

____ 81. What is the total cost of a $56.53 meal at a restaurant after including a 17% tip?a. $3.33 c. $66.14b. $9.61 d. $39.53

____ 82. 145% of what number is 870?a. 60 c. 6b. 6000 d. 600

Name: ______________________

21

____ 83. The circulation of a newsletter decreased from 5200 to 3140. Find the percent of decrease in circulation to the nearest percent.a. 66% b. 40% c. 166% d. 6%

____ 84. Sarah is currently making $33,000 a year at her job and has been offered a raise to $37,950 per year. What would be the percent increase in her salary?a. 17% b. 11% c. 15% d. 9%

Find the slope of the line.

____ 85.

a. 12

b. − 12

c. −2 d. 2

____ 86.

a. −4 b. − 14

c. 14

d. 4

What is the slope of the line that passes through the pair of points?

____ 87. (1, 7), (10, 1)

a. 32

b. − 23

c. − 32

d. 23

Name: ______________________

22

____ 88. (− 53

, −1), (−2, 92

)

a. 233

b. − 233

c. − 332

d. 332

Write the slope-intercept form of the equation for the line.

____ 89.

a. y = − 58

x + 12

c. y = 58

x + 12

b. y = 85

x − 12

d. y = 85

x + 12

____ 90.

a. y = − 58

x + 78

c. y = 78

x + 58

b. y = 58

x + 78

d. y = − 85

x + 78

Name: ______________________

23

What equation in slope intercept form represents the line that passes through the two points?

____ 91. (2, 5), (9, 2)

a. y = 37

x − 417

c. y = 73

x + 417

b. y = − 73

x − 417

d. y = − 37

x + 417

____ 92. (− 34

, − 103

), (− 23

, − 13

)

a. y = 36x + 713

c. y = 136

x – 136

b. y = 36x – 713

d. y = 136

x + 136

Graph the equation.

____ 93. y = –2x – 3a. c.

b. d.

Name: ______________________

24

____ 94. Giselle pays $240 in advance on her account at the athletic club. Each time she uses the club, $15 is deducted from the account. Model the situation with a linear function and a graph.

a.

b = 240 – 15x

c.

b = 225 – 15xb.

b = 225 + 15x

d.

b = 240 + 15x

Write an equation in point-slope form for the line through the given point with the given slope.

____ 95. (–10, –6); m = − 58

a. y – 6 = − 58

(x – 10) c. y + 6 = − 58

(x + 10)

b. y – 6 = − 58

(x + 10) d. y + 10 = − 58

(x + 6)

Name: ______________________

25

____ 96. (3, –10); m = –0.83a. y – 10 = –0.83(x + 3) c. y – 3 = –0.83(x + 10)b. y – 10 = –0.83(x – 3) d. y + 10 = –0.83(x – 3)

Graph the equation.

____ 97. y – 1 = 45

(x + 1)

a. c.

b. d.

Name: ______________________

26

What is an equation of the line?

____ 98.

a. y – 4 = −3(x + 2) c. y – 2 = −2(x + 4)

b. y – 4 = − 13

(x + 2) d. y – 5 = 3(x + 2)

Name: ______________________

27

What is the solution of the system? Use a graph.

____ 99. y = 2x + 1y = –3x – 1a. c.

b. d.

Name: ______________________

28

____100. –4x + 3y = –12–2x + 3y = –18a. c.

b. d.

____101. Kendra owns a restaurant. She charges $3.00 for 2 eggs and one piece of toast, and $1.80 for one egg and one piece of toast. How much does Kendra charge for an egg? A piece of toast?a. $1.20 per egg; $.60 for toast c. $.60 per egg; $.60 for toastb. $.60 per egg; $1.20 for toast d. $1.20 per egg; $1.20 for toast

What is the solution of the system? Use substitution.

____102. x − y = −66x − 3y = −9

a. (1, 7) b. (3, 9) c. −6, 32

Ê

Ë

ÁÁÁÁÁÁ

ˆ

¯

˜̃̃˜̃̃ d. (4, –11)

Name: ______________________

29

____103. A corner store sells two kinds of baked goods: cakes and pies. A cake costs $5 and a pie costs $7. In one day, the store sold 15 baked goods for a total of $91. How many cakes did they sell?a. 7 cakes c. 8 cakesb. 4 cakes d. 5 cakes

____104. Sharon has some one-dollar bills and some five-dollar bills. She has 14 bills. The value of the bills is $30. Solve a system of equations using elimination to find how many of each kind of bill she has.a. 4 five-dollar bills, 10 one-dollar bills c. 5 five-dollar bills, 5 one-dollar bills b. 3 five-dollar bills, 15 one-dollar bills d. 5 five-dollar bills, 9 one-dollar bills

What is the solution of the system? Use elimination.

____105. 5x + 8y = –297x – 2y = –67

a. (–7, 9) b. −10, 218

Ê

Ë

ÁÁÁÁÁÁ

ˆ

¯

˜̃̃˜̃̃ c. (–1, –3) d. (–9, 2)